The government-sponsored housing finance companies plans to allow such borrowers to defer part or all of their mortgage payments for up to 12 months while out of work.   Beginning March 1, Fannie Mae will require mortgage servicers to install a new program providing forbearance relief to unemployed borrowers.  Can provide up to 6 months of relief without approva from a government-sponsored enterprise.  Special consideration can be given to borrowers who require up to 12 months of forbearance.  Freddie Mac will begin offering 12-month forbearance plans Feb. 1.  Delinquent borrowers & others on the verge of default are eligible.  NO investment or 2nd home properties.   Forbearance plans must show borrower has less than 12 months worth of mortgage payments in reserve and has monthly  housing expenses above 31% of their income.